logging in or signing up HSW_keywords[1] danielharvey9 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 9 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 08, 2012 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript PowerPoint Presentation: Science at JHNCC How Science Works Precision How small a measurement is. Millimetres are more precise than centimetres because they are smaller.PowerPoint Presentation: Science at JHNCC How Science Works Accuracy How close a measurement is to its true value .PowerPoint Presentation: Science at JHNCC How Science Works Random errors Errors caused by factors we can’t control, like tiny temperature changes in a room. They can also happen if you make a mistake – like pushing the stopwatch button too early.PowerPoint Presentation: Science at JHNCC How Science Works Systematic errors Errors caused by inaccurate equipment, equipment that doesn’t zero properly or by problems with a method.PowerPoint Presentation: Science at JHNCC How Science Works Reliability If someone else can repeat your measurements and get the same results then your results are reliable. Carrying out repeat measurements checks the reliability of your results.PowerPoint Presentation: Science at JHNCC How Science Works Independent variable The variable you change to see what happens.PowerPoint Presentation: Science at JHNCC How Science Works Dependent variable The variable that you measure.PowerPoint Presentation: Science at JHNCC How Science Works A fair test An investigation or experiment where only the independent variable has been allowed to affect the dependent variable. This means only changing one variable and keeping everything else the same.PowerPoint Presentation: Science at JHNCC How Science Works Validity Your results must be valid if you are going to be able to draw a conclusion from them. To get valid results you need to carry out a fair test.PowerPoint Presentation: Science at JHNCC How Science Works Continuous variables Variables that can have any numerical value. You should use a line graph to show this type of data.PowerPoint Presentation: Science at JHNCC How Science Works Categoric variables Variables that are described by labels . You should use a bar chart to show this type of data. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
HSW_keywords[1] danielharvey9 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 9 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 08, 2012 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript PowerPoint Presentation: Science at JHNCC How Science Works Precision How small a measurement is. Millimetres are more precise than centimetres because they are smaller.PowerPoint Presentation: Science at JHNCC How Science Works Accuracy How close a measurement is to its true value .PowerPoint Presentation: Science at JHNCC How Science Works Random errors Errors caused by factors we can’t control, like tiny temperature changes in a room. They can also happen if you make a mistake – like pushing the stopwatch button too early.PowerPoint Presentation: Science at JHNCC How Science Works Systematic errors Errors caused by inaccurate equipment, equipment that doesn’t zero properly or by problems with a method.PowerPoint Presentation: Science at JHNCC How Science Works Reliability If someone else can repeat your measurements and get the same results then your results are reliable. Carrying out repeat measurements checks the reliability of your results.PowerPoint Presentation: Science at JHNCC How Science Works Independent variable The variable you change to see what happens.PowerPoint Presentation: Science at JHNCC How Science Works Dependent variable The variable that you measure.PowerPoint Presentation: Science at JHNCC How Science Works A fair test An investigation or experiment where only the independent variable has been allowed to affect the dependent variable. This means only changing one variable and keeping everything else the same.PowerPoint Presentation: Science at JHNCC How Science Works Validity Your results must be valid if you are going to be able to draw a conclusion from them. To get valid results you need to carry out a fair test.PowerPoint Presentation: Science at JHNCC How Science Works Continuous variables Variables that can have any numerical value. You should use a line graph to show this type of data.PowerPoint Presentation: Science at JHNCC How Science Works Categoric variables Variables that are described by labels . You should use a bar chart to show this type of data.